/Engine/Plugins/Media/WebMMedia/Source/WebMMedia/Public/WebMSamplesSink.h
void AddAudioSampleFromDecodingThread ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FWebMMediaAudioSample](API\Plugins\WebMMedia\FWebMMediaAudioSample), ESPMode::ThreadSafe > Sample )